Adding-machine.



1. P. BUITEN; n. rnmnn.

Annmd Mmmm.v APPLICATION IILED DBO. 30, 1908.

Patented 4Apr; 14, 1914.

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l 11mm; ummm. l A Arrnlonlo'l funn Dnc. 3o, 190e. 1,093,424. Patented41312141914 4 SHEETS-SHEET 24 l ,Lx Attest.-

In ventors mented Apr. 14, 1914 4 SHEETS-SHEET 3.

J. P. HUNTER E H. KN'TZLER.

DDNG MACHINE.

APPLICATIOR' FILED DEG. 3Q, 1908.

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J. P. HUNTER a; H. KNTZLER ADDING MACHINE.

APPLICATION FIIBD DBC.30, 1908.

1,093,424. Patented Apr. 14, 1914.`

4 SHEBTS-SHEET 4.

.Arron/ffy.

1 nism ot' the adding machine against accicrank and a gearing moved fromthe rack UNJTED STAFES PATENT OFFICE.

JOHN PIRRONG HUNTER AND HENRY KNTZLER. OF VJILKES-BARRE, PENN-SYL-VANIA, ASSIGNORS. BY DIRECT AND MESNE ASSIGNINIENTS. TO ADDER MACHINECOIVIPANYy A CORPORATION OF PENNSYLVANIA.

ADDING-MACHINE.

Specification of Letters Patent.

Patented Apr. 14, 1.914.

Application filed December 30` 1908. i Serial No. 470,073.

[u c?! 'ir/wm 'it may concern Be it known that' we. Joux Puiuoxcli'x'rni: and l'liixnv KiNTzLi-:ln citizens of the L'nited States, andresidents of lif'ilkes- Barre. in the county of Luzerne and State oflenns \'lvania. have invented Vcertain new and useful improvements inAdding-Machines. o1 which the following is a specification. i

This invention relates to adding machines and similar mechanisms adaptedto be intermittently energized by a motor taking its power from a sourceof electrical energy through conductors and its novelt1 consists in theconstruction and adaptation of the parts. as will he more Vfullyhereinafter pointed out., and particularly in the means providedantomaticall)Y to lock the mechadcntal actuation when the motor is notenergized. and to warn the operator by a visible or audible signal, orboth, when the current is turned on to the motor serving to actuate themachine. and te indicate clearly when the motor is not energized.

ln the following specification the invention is shown and described asapplied to the Tales adding machine and to a peculiar driving mechanismattached thereto. but it will be'understood that it is equallyapplicable to other forms'of driving mechanism and power transmittingdevices, or-^other adding machines.

The driving mechanism herein disclosed lis described and claimed in aco-pending application for Letters Patent of the United States tiledDecember 28. 1908, SerialNo. 409.1; SL which. in brief comprises a mul`tiple crank moved from the intermediate .shaftabove referred to. aloosely traveling member in the torni of ay sliding rack bar moved b vbut not. connected to the multiple har to which also it is not connectedand which gcaringactuates the operating rock shaft of the machine.

-In the drawings. Figure 1 is a top plan view of the front portion of anadding machine provided with our invention; Fig. 2 is a side elevationof the parts shown 1n Fig. 1. Mgt-ther with the mechanism below the baseof the machine. a portion of the inachiuc being broken away to showconcealed ed and restored.

parts; F ig. 3 is a perspective detail of the motor actuator controlarm; Fig. 1l is an enlarged section through the switch box and a topplan view of the parts hc cath the sec tion plane showing the positionsof the paris when the current is on; Fig. I is a similar view. showingrthe position ot' the same. parts when the current is off; Fig. (i is asect-ion on the plane of the line G--t in Fig. 5; Fig. T is a diagram ofthe wiring of the vn'iachine. Fig. is a side elevation of the motoractuator controller. Figs) and 10 are respectively front andreai"elevations' of the same. and Fig. l1 is a side elevation partly insection showing the clutch mechanism intermediate the motor and theadding machine. Referring to the ,lrawings. 1 is the base of an addingmachine and '2 is a part ot one of its side frames, of which there aretwo. one on each ,side ofthe machine: 3 is a transverse shaft'throughthe oscillation of which the mechanism of the adding machine isoperated. I A

Mounted on a pair of elbow levcrsx 20 which move together is adeprcssible bar 2l adapted to move vertically. This bar is provided witha. pair-of depending sleeves 4 which engage the. upper ends of thelevers 20 and may thus be readilv removed therefrom. These levers areadapted to swing.r on pivots 22 projectingr from the .frame of themachine. At their lower extremities the)v are coupled by a lilik 23 sothat the)r will move together and to une of them at 2i is pivoted a linkQ5. which in turn is pivoted to a crank arm 2G-rigidly Secured to rockshaft .27 to the other end of which is secured a crank arm QS which inturn is'pivoted to a verticall \v placed link 29 pivoted at its lowerend to a crank 30 mounted on a rock .shaft 31 which. in turn.A isconnected to the devices b v which' the. function of the. holder of the.power transmitting-mechanism is interruptlt will be understood that thepower transmitting mechanism disclosed is not a part..

issued October 28, 1908. to 'Charles X. Mc-

Fai-land. In brief.' however. as is shown in Fig. 11, the motor 100drives shaft 101 carrying a worm400.'v dVorm 400 drives a wormwheelloosely mounted upon shaft 105.

This wormwheel carries a drum 401 with a V finished inner cylindricalsurface. "itlliilA this drum is located a pair of semicircular frictionarms 403 pivotall mounted at 402 to a plate fastened to shaV t 105. Thisplate also carries a Pair oflugs, one ofwhich is 5 'shown jat 409. Aspring 411 is attached to each 'of these lugs and`to a s tud 410 uponthe friction arms 403, the springs tending to force the arms outwardagainst the inner surface of the drum-401. Thisthrust of the l'nyspnnigs is normally resisted by means 'of vsuitable pins 413 fastenedto the armsnear their extremities and engaging 'slots in aI rotatingpiece carrying diametrically opposed ears 404.; This piece is inturn nr-"mally held from movement by a detent 405 engaging one of saidears. Thisdetent is mounted upon arm'406 whichis fastened to and rocks` with shaft31 'when the' actuator bar 29 is depressed. The release of the ear 404from the detent allows the spring/411 to 'bring the friction -arms intocontact with.

-30 roller 40S carrie by an arm 414 fastened to rock shaft 31 andmovesit outward. This movement at the same time forces arm 406 inward toa position inf'which the detent 405 willengage the second ear 404 'whentheshaft has completed one-half of a revo- -1ution; The arrest-in ofmovement of the ear-carrying piece'e ects` by means of the 'pin and slotconnections above described-a withdrawalv of the friction armsfrom en-40 gagement with the' rotating'drum 'against the pressure 'of thesprings attached to .the arms and in thisway the driving and the drivenparts are completely disengaged and the clutch is vin ation.

Mounted-on the intermediate shaft 105'is a multiple crank 60 having aplurality of arms 61, each provided at its extremity with a. roller 62.-

63 is a roller adapted to turn on a pin or -bearing projecting from afixed part' of the clutch inclosure. 64 is a similar roller adjustablvattached also to the clutch inclosure. Mounted to be reciprocatedbetween these rollers, by which it isl guided and which limit itsmovement is a loosely traveling rack bai-w65V provided -with a slot 66adapted to engage the roller 63. It also has a depending arm 67 adaptedto be engaged by the rollers G2 on-the arms 61 of the multiple'cranlr60and is also provided with a iarige 68 adapted to engage thearoller^64-At its upper front, edge it has av series of Ateeth @constituting arack, which teeth are l e5 adamp fn engage. the teeth '70 of a gear 71motor readiness for a second actu- A operatively connected to the shaft3 which it oscillates.. spring.A indicated at 600 is fastened to the barG7 and to a fixed point on the clutch inclosure and serves to retract itto position after movement.

In the operation ofthe machine after an item Ahas' been enumerated inthe usual inanner by the depression oft-he numeral keys with. which. itis provided (and which are not shown)` the actuator bar 2l is depressedby the operator. This moves the link 25 to 'oscillate the crank 26androck the shaft 27 which in turn lowers the arm '2S and link 29 androcks the shaft`31 to couple the intermediate shaft 105 to the'motorwhereby the multiple cranl{ 60 is rotated and the .rack bar is moved toactuate thc machincj None of the parts above described constitute anypart of our present invention. but their general construction, relationand mode of operation must be understood in order that the particularinvention under discussion can properly be appreciated.

Concealed at a point at the front of the base'of the machine convenientto. theoperator isa b o'x S made of insulating material and adapted tocontain an electrical switch S0 throughwhich an electric current issupplied from an ordinary lamp socket to the circuit. It comprises abeam 'S1' adapted to'cscillate on a pivot S2 and moved by tworods one S3pivoted to the beam S1 at S4t and the other S5 pivoted to the beam 81 atSG. `The .rod 83 is provided with a 'push button 87', and the rod 85 isprovided with a similar push button SS. each projecting through suitableapertures in the front of the box 8 and A the base of the machine. Thesebuttons are made of any suitable insulating material. as hard rubber.

Electrical conductors 90 anfl'91 leading from and to a source ofelectrical energy (not shown)- supply current to the motor 100. They'are in. circuit .with the switch 80 through the contact posts 93leading from the conductor 90 and adapted to contact with a wing 95 onthe beam 81 and through the-similar post 90 leading from the conductor91 and adapted to contact with the wing 97 on the beam 81. l.llhcn thebeam and-buttons are in the positions shown in Fig. 4 the current isonand the motor 100 is energized, and when they arein the positionsshown in Fig. 5. the current is off and the motor is not energized.

Secured to one of the buttons 88 is a rod 200 having an extension 201 ofsuitable insulating material, forinstancc, hard rubber, adapted to passthrough an 'aperture in the rear of the box 8. To the outer 'extremityof this extension there is secured an elbow 202 provided with a catch203 adapted to 90 and in circuit with the motorithere is inserted anincandescent electric light indicated at 210.A It is obvious that whenthe current is turned on by the .movement of the switch 80, the lightwill glow and shine so long as the parts. remain in thatposition.

Projecting from .the connection201 is a trip arm 212 adapted to engageone elbow Q13 of a bell crank lever pivoted at 2-11 to any convenient'part-o1' the machine and the other elbow 9.15 of which is provided witha clapper 216 adapted to strike'a gong 217, the elbow lever beingprovided with a spring' indicated at 9.18 to restore it to positionafter actuation. supposing thatl the conductors '00 and 91 are suitablysuppliedwith energy and' the parts of the switch are in the positionsshown in Fig. 4, it is obvious that the current can pass from theconductorAQO through the post 93, wing 95,beam 81, Wing 9i', post 96 andK conductor 91 and thus complete the circuig 210 is illuminated.

so that the motor is energized and the light ll'hen t the parts are inthis position: if the arm-.21 is depressed, and. there is no otherobstacle placed in theway of the morement 'of the crank 30 'actuatedfrom the link "J9, then the depression of the larrn 21 will couple theintermediate shaft 105 to the motor 100, cause the rotation of the.multiple arm G0', the movement ofthe rack G5 andthe consequent actuationof the machine through the gear 71. Iig-however, the push button 88 ispushed'inwardly, the parts are caused to assume the, positions shown inFig. when it is evident that the circuit will bc broken and the mot-orwill cease to be energized and the light will be extinguished. `At vthesame time the movement o the extension 201, through the action ofthe'button 88',`will more the catch Q03 under the latch 20L of the link29, and thereafter the iinl; 29 and consequently the deprcssible arm 21cannot he moved downwardl)v and the adding machine cannot he coupled tothe. motor.

It is further obvious` that when the current is again turned on, by themovement of the push button S7: the trip 213 will contact with the elbowlever of the gong 217 and strike il. as a mere incident of suchactuation. and call the attention of the operator to the fact that themotor is in condition-for use. At the same time the catch 2.03 will heremoved from under the latch 201 and thereafter the liukjf" and the-bar.`21 can be de] iessed lo couple the adding machine and mclor together. Y

The contri-.iler F100 shown in Figs. il, 8, 9, l0 and 11 au inventionforming the subiectmaller of a cdpeuding application filed December if).19u-S. Serial No. 469,758. In its essentials ii comprises a circularplate 119 n-oriile'l with a huh 1110 and radial slots L11S, Radin; plus`'r1.3 are. 'fastened to thev 'abutting the hub.

weights and project through the slots L118 'in the plate 419. Springs 79are attached to ,these Studs and to the hub v411() as shown in'- F ig.10, these springs tending to hold the weights Ain their ext-reine innerposition l 11s shown in F ig. 8, the weights have a peripheralprojecting `flange 700 which when the-device is at. rest or' movingVslowly is interposed in the path of 'movement of nose 2.91 of arm 290rigidly fastened tofshaft-l. The device is fastened to and rotates" withshaft 101 so that when the latterv acquires a predetermined speed, thecentrifugal force acting upon the weightsm-'ercomes the tension of thespringsV to which they are attachedand the-weights move radially outwardthereby carrying the flange 700 out of the path of nose :291.` AThe.shafti'31 may then be roekedto cause the clutching action previouslydescribed.

It will thus be seen that we have provided a'lock to prevent thedepression of the bar 21 when the current is not o n the motor-and thelatter cannot, therefore, actuate the adding machine and a second auto;

.matic lock operated from the motor to prevent the depressionof the bar21 until a proper speed has been arrived at to actuate theadding machineat the rate and under the conditions which proper Avvork.

Vhat w'e claim as new is 1. The combination with a motor a ma-' chineadapted to. be intermittently operated by the motor, of an actuatorbythe movement of Which-the motor is coupled to the machine, a source ofenergy for'the motor, a switch intermediate the same and the motorandmeans actuated from the switch adapted to hold the actuatorinoperative so long as the motor is not energized.

The combination with a motor a machineV adapted to be intermittently1operated by the motor, of an actuator by the movement should obtain forof Vwhich the motor is coupled ,tothe machine, a source of energy forthe motor,a vswitch intermediate the saine and the motor, and meansactuatedffrom the 'switch adapted to Yhold the actuator .inoperative solong as the motor .is not energized, the same means serving to releasethe actuator as an incident of the movement of the switch to energizethe motor.

3. In combination, a'calculati'ng machine, an electrical motor, a`connection between them including a depressible actuator, 'a source ofenergy from which the motor is energized, a switch.' and means' actuatedfroin'the switch'to engage the depressible actuator.

4; In combination, a calculating machine,

an electrical motor, a connection between them including a depressibleactuator, a source o energy -from which the motor' is energized, aswitch and means actuated from thegsivitch tc engage the depresfsibleactuator-when the circuit is..brolten' by the movement of theswitch.

' 5. -In combination', afcalcula'ting machine,

an electrical motor, -a 'connectionbetween them including v.adepressiblefactuator, a"

source of energy from which the motor is energized, a switch and meansactuated from the switch 'to engage. the depressible actuator when thecircuit is broken bythe switch and automatically to disengage it whenthe circuit is closed.

, 6. In combination,- a calculating machine, an electrical motor, aconnectionV between them includingia depressible actuator provided witha latch, a source of energy from which the motor. is energized,vaswitch, and

a catch moved bythe switch toengage the latch and render it ,inoperativewhen the switch is actuated tobreak the circuit.

7. In combination, la calculating machine, an electrical motor, a,connection between them including a depressible actuator provided withalatch, a source of energy from which the motor is energized, a switch,and

Ya catch mo'vedvbythe switch to engage the A latch and render itinoperative ivhen the switch is actuated to break the circuit, and alsomoved by theswitch to release the latch 'when the switch is actuated toclose the circuit. y

' 8. A'l`he"combination.With amotor a machine adapted to beintermittently operated by thel motor, ofan actuator bythe move- 'mentof which the motor iscoupled to the machine,"a source of energy for themotor,

a switch intermediate the 'same and the -motor and means actuated fromthe switch adaptedn to hold theactiiator inoperative so long as themotor is notenergized, and further 4means actuated by the same switchadapted to indicate visually that the motor is energized. as an incidentof operating the switch for that purpose.

9. The combination with -a motor -a machine adapted to be intermittentlyoperated by the motor, of an actuator by the increment of which themotor is-'coupled to the machine, a source of energy forthev A motor, aswitch intermediate the same and chine adapted to be intermittentlyoperated -by the motor, of an actuator by the morc- 1 ment of which themotor is coupled to the machine, a source of energy forthe motor, asW1tch intermediate the same and the motor and means actuated from theswitch adapted to hold the actuator inoperative vso 11. In combination,a calculating machine,`

an electrical motor. a connection between them including an actuator, asource of'energy from which the motor is energized, a suf'itchand'meansactuated from the switch to engage the actuator when the circuit isbroken the switch, and simultaneously to indicate by a visual signalYthat'the motor is not energized.

12. The 'combination with a motor a machine adapted to be intermittentlyoperated by the motor, ofan actuator by the movement of which the motoris coupledv to the machine,fa source of energy for the motor, a switchintermediate the same and the mo. tor, a'conductor leading from thesource of energy to the motor through the switch and a light signal inthe circuit.

13. The combination with a motor a machine adapted to be intermittentlyoperated by theV mot0'r,'of' an actuator by thel movement-of which themotor is coupled tothe machine, a source of energy for the motor, aswitch intermediate the same and the 1110-' tor, a conductor-leadingrom'the source of energy. -to the motor through the switch and alightsi'gnal in the-circuit and an audible signal adaptedv 'to bemechanicallyoperated bv the switch when the latter is moved 'to closethe circuit. I

14. The combinationl with a'niotor a machine adapted to beintermittently operated4 by the motor, of an actuator by the movement ofwhich the motor is'coupled to the machine, a source of energy for themotor, a switch intermediate the'same and the motor, a conductor leadinglfrom the source of energy to the motor throughthe'su'itch and alightsignal .in the circuit and an audible signal adapted to bemechanically operated by the switch when the latter is moved to closethe circuit', and means Afor automatically' locking theactuator throughthe switch 'and extinguishing the light signal when the switch is movedto open-'the circuit.

,15. I'n combination'` a calculating machine, an electrical motor, aconnection between them including a depressible actuator, a

source of energy from which the motor is'.

gnrgiid. a switch, means moved by the switch to hold the dcprcssibleactuator inop-v eratirc` when the switch is actuated to break thecircuit. and to render itv operative when thc. switch is actuated toclosethe circuit.,

and additional means rendering thc deprcsl sible actuator inoperativeafter the motor -is energized until it has attained a predeterminedspeed. A

16. In combination, a calculating machine,- a'n electrical motor, aconnection vbetween them including a.v depressible actuator` a source ofenergy from which the motor is energized, a switch-means moved by theswitch to hold the depressible actuator inoperative when the switch isactuated to break the circuit and to render it operative when the switchis actuated to close the cir# cuit, and additional means rendering thedepressiblevactuator inoperative after the motor is energized until ithas attained a predetermined speed and then permitting its operation.

17. The combination with a machine adapted to be intermittently operatedby'a motonofan actuator by the movementvof which the motor is coupled tothe machine= a source ofv energy for the motor, a.- switch to the motorthrough the switch and a light signal in the circuit and an audiblesignal adapted to/be mechanically opera-ted by the -switch when thelatter is moved toclose the circuiti and means for automatieall)7locking vtheactuatorthrough the switch and extin-' guishing the lightsignal when the switch isnioved to open the 'circuit` the same meansAauteniatically rendering it inoperative when the speed of the motorfalls below the predetermined rate.

eeinber`-1908, at Wilkes-Barre, Pa;

' JOHN rinnovare HUNTER.

- `HENRY KNTZLER. Witnesses:

VlhuAnrR. BAI'RD, ALAN C. MCDONNELL.

Witness 'our hands this' 22nd day of De'-l

